Your page source looked good, with the js files automatically being called correctly in the <head>. I haven't had anything to do with mootools, but I do know that jquery needs to have jscript_jquerywhatever.js called before js files that use it. You have
HTML Code:
<script type="text/javascript" src="includes/templates/ponyr_dark/jscript/jscript_jd.gallery.js"></script>
<script type="text/javascript" src="includes/templates/ponyr_dark/jscript/jscript_jd.gallery.transitions.js"></script>
<script type="text/javascript" src="includes/templates/ponyr_dark/jscript/jscript_mootools-1.2-more.js"></script>
<script type="text/javascript" src="includes/templates/ponyr_dark/jscript/jscript_mootools-1.2.1-core-yc.js"></script>
</head>
Renaming the jscript_mootools-* files like jscript_1_mootools-* will load them first.